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1. (WO2015116338) TRAILING EDGE COOLING PEDESTAL CONFIGURATION FOR A GAS TURBINE ENGINE AIRFOIL

Pub. No.:    WO/2015/116338    International Application No.:    PCT/US2014/072431
Publication Date: Fri Aug 07 01:59:59 CEST 2015 International Filing Date: Sat Dec 27 00:59:59 CET 2014
IPC: F01D 5/18
F02C 7/18
Applicants: UNITED TECHNOLOGIES CORPORATION
Inventors: DOWNEY, James, B., Jr.
ZHANG, Brenda
LEMIEUX, Steven, G.
KAUFMAN, Eleanor, D.
FUKUDA, Takao
NADEAU, Daniel, C.
Title: TRAILING EDGE COOLING PEDESTAL CONFIGURATION FOR A GAS TURBINE ENGINE AIRFOIL
Abstract:
An airfoil for a gas turbine engine includes pressure and suction surfaces that are provided by pressure and suction walls extending in a radial direction and joined at a leading edge and a trailing edge. A cooling passage is arranged between the pressure and suction walls and extending to the trailing edge. The cooling passage terminates in a trailing edge exit that is arranged in the trailing edge. Multiple rows of pedestals include a first row of pedestals that join the pressure and suction walls. The first row of pedestals is arranged closest to the trailing edge but interiorly from the trailing edge thereby leaving the trailing edge exit unobstructed.